some basic psychology so you will understand why others do what they do. (Everyone usually acts in his/her own perceived best interest).

About your own family’s history (talk to your parents and grandparents).

How to debate.

How to negotiate

How to persuade others (everything you will ever want or need is under the control of others so you must persuade them that it is in their best interest to make it available to you). Examples: jobs, loans, assistance, spouse, friends, salary raises, promotions, school grades, votes, sales, etc.